improve TCP/uTP mixed mode algorithm by only taking peers into account that have outstanding requests (and want to send or expect to receive). Also throttle upload and download independently
improve TCP/uTP mixed mode algorithm by only taking peers into account that have outstanding requests (and want to send or expect to receive). Also throttle upload and download independently

git-svn-id: 4f0141143c3c635d33f1b9f02fcb2b6c73e45c89@6102 a83610d8-ad2a-0410-a6ab-fc0612d85776

archos-sa/libtorrent-avp,halorgium/libtorrent,archos-sa/libtorrent-avp,halorgium/libtorrent,halorgium/libtorrent,halorgium/libtorrent,archos-sa/libtorrent-avp,archos-sa/libtorrent-avp,halorgium/libtorrent,halorgium/libtorrent,archos-sa/libtorrent-avp,archos-sa/libtorrent-avp